Hi MaBe.
On this board esp8266-01:
It works well.
1v84.tve_master_588d193_esp8266
boot with version 1.4 is no problem.
But
espruino_1v87.tve_master_b3dc05b_esp8266­
espruino_1v89_esp8266
do not work!
I think there is a problem with boot version 1.6

I received from the aliexpress esp8266-01 -1M
I downloaded 1v84.tve_master_588d193_esp8266.
Works good. Thank you.
Then I uploaded via USB-TTL Fail 1024 KB = FF
after that
0x0000 "boot_v1.6.bin"
0x1000 espruino_esp8266_user1.bin
0xFC000 esp_init_data_default.bin
I got an infinite loop but one line unreadable.
Help me to understand.
This esp8266-01 incompatible with espruino ?